Rather than spend quite a lot of money on an electric toothbrush that has an 'alien' feel to it, and can be very uncomfortable to use if you have sensitive teeth, why not go halfway and try an Oral B Pulsar? This is just like an ordinary toothbrush except that the bristles vibrate as you clean your teeth in your usual manner, and it is more effective against plaque. I've had two electronic toothbrushes that are languishing here unused, but I love my Pulsar.

One thing, the first 'batch' of these tended to be unreliable as to battery life (the battery is not replaceable), but I think there's been a relaunch and the latest ones are OK. Mine have lasted anything between one and three months, and the bristles don't 'fray' as quickly as with an ordinary toothbrush because - I think - one tends to exert less pressure.